Home / 1,287,110.12-1,769,913.38-1,117,049.00

Finding the Fourth Proportional to 1,287,110.12, 1,769,913.38 and 1,117,049.00

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Solution

The fourth proportional to 1,287,110.12, 1,769,913.38 and 1,117,049.00 is: 1,536,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,110.12 : 1,769,913.38 = 1,117,049.00 : x
  2. Step 2: Convert to fraction form
    1,287,110.12/1,769,913.38 = 1,117,049.00/x
  3. Step 3: Cross multiply
    1,287,110.12x = 1,769,913.38 × 1,117,049.00
  4. Step 4: Simplify right side
    1,287,110.12x = 1,977,079,965,158.68
  5. Step 5: Solve for x
    x = 1,977,079,965,158.68/1,287,110.12
  6. Step 6: Final answer
    x = 1,536,061.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.